Greg Heffley is a scrawny but ambitious kid with an active imagination and big plans to be rich and famous – he just has to survive middle school first.

As a new school year begins, Greg is subject to relentless teasing from his brother Rodrick. Will Greg manage to get along with him? Or will a secret ruin everything?

A hilarious and heartfelt holiday tale centered around everyone's favorite disaster-prone middle school student, Greg Heffley, which finds him desperately fighting to stay off Santa's naughty list as the family prepares for a major winter snowstorm.

When laidback Greg finds himself at odds with his dad's outsized expectations, pressure builds to turn his act around. After a series of hilarious near disasters, Greg's dad presents him with an ultimatum that just might challenge his wimpy ways for good.